Non-toxic finishes and child-safe wood materials. Every piece of the wooden puzzles is smoothly polished, to remove the thorns of the wood, to ensure the safety while your baby is playing.
The pieces are easy to fit together, which makes for an easier time for learning toddlers (versus more challenging puzzle pieces that fit snuggly and are harder for toddlers to fit together).
There are numbers on the back which is easy to distinguish where they are should be put when your little babies are confused the puzzles.
There is a lightweight iron box to storage, and the complete pictures are printed on the box as the reference. Perfect gift to kids birthday,christmas gift